minor change

Author: clausnagel

src/main/java/org/xmlobjects/util/copy/ArrayCloner.java

@@ -9,7 +9,7 @@
 
 public class ArrayCloner extends AbstractCloner<Object> {
 
-    ArrayCloner(CopyBuilder builder) {
+    protected ArrayCloner(CopyBuilder builder) {
         super(builder);
     }
 

src/main/java/org/xmlobjects/util/copy/CollectionCloner.java

@@ -10,7 +10,7 @@
 @SuppressWarnings("rawtypes")
 public class CollectionCloner<T extends Collection> extends AbstractCloner<T> {
 
-    CollectionCloner(CopyBuilder builder) {
+    protected CollectionCloner(CopyBuilder builder) {
         super(builder);
     }
 

src/main/java/org/xmlobjects/util/copy/MapCloner.java

@@ -13,7 +13,7 @@
 @SuppressWarnings("rawtypes")
 public class MapCloner<T extends Map> extends AbstractCloner<T> {
 
-    MapCloner(CopyBuilder builder) {
+    protected MapCloner(CopyBuilder builder) {
         super(builder);
     }